CN1754724B - Seat belt retractor - Google Patents

Seat belt retractor Download PDF

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Publication number
CN1754724B
CN1754724B CN 200510109727 CN200510109727A CN1754724B CN 1754724 B CN1754724 B CN 1754724B CN 200510109727 CN200510109727 CN 200510109727 CN 200510109727 A CN200510109727 A CN 200510109727A CN 1754724 B CN1754724 B CN 1754724B
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China
Prior art keywords
cam
seat belt
belt retractor
sensor pawl
alr
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CN 200510109727
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Chinese (zh)
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CN1754724A (en
Inventor
R·A·波尔斯特勒
R·E·范豪文
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关键安全体系股份有限公司
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Priority to US60974504P priority Critical
Priority to US60/609,745 priority
Application filed by 关键安全体系股份有限公司 filed Critical 关键安全体系股份有限公司
Publication of CN1754724A publication Critical patent/CN1754724A/en
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Publication of CN1754724B publication Critical patent/CN1754724B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/36Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/415Belt retractors, e.g. reels self-locking in an emergency with additional means allowing a permanent locking of the retractor during the wearing of the belt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/36Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement

Abstract

A seat belt retractor (20) has both ELR and ALR modes of operation. The seat belt retractor (20) has a sensor pawl (44) movable between a released and a locked position with teeth (34) of a ratchet wheel (46) rotatable with a spool (24). The sensor pawl (44) is part of both the ELR and ALR locking mechanisms. A spring biased lever (130) is rotatable to a first position and when in the first position urges the sensor pawl (44) toward engagement with the ratchet wheel (46). The lever (130) is movable to a second position, which permits the sensor pawl (44) to move away from the ratchet wheel teeth (34) to prevent the seat belt retractor (20) from entering into the ALR mode of operation. The lever (130), when in the second position, biases the sensor pawl (44) into engagement with a cooperating inertial mass (42) that is part of a vehicle sensitive locking mechanism of the seat belt retractor (20). This bias force operative on the sensor pawl (44) is effective to limit the motion of the inertial mass (42) to lessen or eliminate vibrational movement of the inertial mass (42) relative to the sensor pawl (44) and movement relative to a support basket or support structure that holds the inertial mass (42) thereby lessening acoustic and vibrational noise created by the movement and rattling of the sensor pawl (44) and/or inertial mass (42).

Description

座椅系带牵引器 The seat belt retractor system

技术领域 FIELD

[0001] 本发明涉及一同时具有ELR和ALR功能的座椅系带牵引器。 [0001] The present invention relates to a seat belt retractor system having both ELR and an ALR function. 背景技术 Background technique

[0002] 如本技术领域内所公知的,ELR意指一紧急锁定的牵引器,它通常包括一个或多个惯性锁定机构,其特别地示于EP 0 228 729A1中。 [0002] As well known in the art, the ELR means an emergency locking retractor, which typically includes one or more inertial locking mechanisms, which is particularly shown in EP 0 228 729A1. 一典型的ELR座椅系带牵引器包括一车辆敏感锁定机构和一织带敏感锁定机构。 A typical ELR seat belt retractor system comprises a vehicle-sensitive locking mechanism and a web sensitive locking mechanism. 车辆敏感锁定机构和织带敏感锁定机构可享有某些共同部件。 Vehicle-sensitive and webbing-sensitive locking mechanism locking mechanism may have certain components in common.

[0003] 车辆敏感锁定机构通常包括一外壳构件,其相对于牵引器框架的侧边和牵引器卷轴可转动地安装。 [0003] The vehicle sensitive locking mechanism generally comprises a housing member with respect to the side of the tractor and the tractor frame spool rotatably mounted. 该外壳构件称之为锁定杯。 The housing member is called a lock cup. 该外壳构件支承一构造为一球的惯性质量或一站立的人。 The housing member is configured to support an inertial mass of a ball or a standing person. 超过一限值的加速度或超过车辆一限值的过度转动会移动该惯性质量,该质量起动牵引器的锁定功能。 Exceeds a limit acceleration or of excessive vehicle exceeds a limit value of the rotational inertia mass moves, the startup lock function of the mass of the tractor. 外壳构件通常包括一可转动地支承的棘爪,由于它与惯性质量合作,所以也称之为传感器棘爪。 Generally comprises a housing member rotatably supporting the pawl, due to its cooperation with the inertial mass, so it is called the sensor pawl. 惯性质量的运动致使传感器棘爪从一脱开致动的位置移动到一致动的位置。 Inertial mass causes movement of the pawl moves from the position sensor a disengagement actuator movable to a position consistent.

[0004] 在致动位置,惯性的棘爪接合棘轮的一个或多个齿。 [0004] In the actuated position, the inertial pawl engages one or more teeth of the ratchet. 棘轮松动地支承以便围绕卷轴的转动轴线转动和随牵引器卷轴转动地移动。 Ratchet loosely supported for rotation about the axis of rotation of the reel and rotatable with the retractor spool moves. 传感器棘爪与棘轮的接合可将棘轮连接到卷轴,卷轴致使锁定杯构件随转动的卷轴一起转动。 The sensor pawl engaging the ratchet wheel can be connected to the ratchet spool, the spool causes the locking cup member rotates together with the rotation of the spool. 与卷轴的转动相一致的锁定杯的转动致使锁定棘爪接合另一棘轮(也称之为锁定轮)的一个或多个齿。 The rotation of the reel coincides with rotation of the locking cup causes the locking pawl engages the ratchet wheel to another (also referred to as locking wheels) one or more teeth. 锁定轮和与传感器棘爪合作的棘轮可以是同一部件。 Locking wheel and the ratchet pawl may cooperate with the same sensor member. 锁定棘爪与锁定轮的齿的接合导致一普通座椅系带牵引器的起动。 A locking pawl engaging the teeth of the lock wheel leads to start a conventional seat belt retractor system.

[0005] 当座椅系带舌从一合作的座椅系带扣中移出时,该延伸的座椅系带(也称之为座椅系带的织带)将响应于通常由一回绕弹簧提供的偏置力而缩回到卷轴上。 [0005] When the seat belt tongue is removed from the seat line strap buckle a cooperation, the seat strap (also referred to as a webbing of a seat belt system) in response to the extended typically provided by a rewind spring the biasing force on the spool to retract. 回绕弹簧将所有可供使用的座椅系带的织带回绕到卷轴上,这样,座椅系带牵引器可准备下一个循环的使用。 The wrap spring all available seat tether webbing rewound onto the reel, so that the seat belt retractor system may be used to prepare a next cycle. 这种状态通常称之为收藏状态,因为座椅系带的织带此时收藏或回绕在卷轴上。 This state is generally called a stored state, since the seat belt webbing at this time based collection or rewind on the reel. 在此操作模式中,可望和通常要求ELR锁定机构处于一脱开致动的状态,这样,若没有ELR锁定机构的干预,则座椅系带的织带不延伸或缩回,ELR锁定机构是车辆敏感或织带敏感的锁定机构。 In this mode of operation, and is expected to usually require ELR locking mechanism is in a disengaged actuated state, so that, if there is no intervention of the ELR locking mechanism, the webbing of the seat belt system is not extended or retracted, the locking mechanism is ELR vehicle sensitive or webbing-sensitive locking mechanism. 有时,当座椅系带的织带移动到收藏位置时,车辆敏感的锁定机构不留心地呈一不希望的锁定状态,这阻止座椅系带从座椅系带牵引器中容易地拉出。 Sometimes, when the webbing of the seat moves to the stowed position of the tether, the vehicle sensitive locking mechanism inattentive to form an undesirable locked state, which prevents the seat tether easily pulled out from the seat belt retractor in the system. 所幸的是,这种情况通常都是暂时的。 Fortunately, this is usually temporary. 在本发明中,在座椅系带处于收藏状态时,偏置传感器棘爪远离棘轮,阻止牵引器这样一不留心的锁定状态,就可避免这种不希望的状态。 In the present invention, in the stowed state of the seat belt system, the sensor bias pawl away from the ratchet wheel, preventing such an inadvertent retractor locked state, can avoid such undesired state. 如果座椅系带牵引器安装在一可移动的座椅背上,则在座椅背移动时该特征可防止牵引器被锁定。 If the seat belt retractor system is mounted on a movable seat back, this feature prevents the seat retractor is locked when the seat back moves.

[0006] 对于紧急锁定座椅系带牵引器,已知还包括有ALR功能。 [0006] For emergency locking seat belt retractor system, further comprising the ALR function are known. 当处于ALR操作模式时, 车辆敏感的和织带敏感的锁定功能被回避。 When in the ALR mode of operation, the vehicle-sensitive and webbing-sensitive locking functions are avoided. 座椅系带牵引器的ALR功能通常在座椅系带的织带围绕一儿童座椅固定时被致动。 ALR function tractor seat tether is generally a fixed child seat when actuated around the webbing of a seat belt system. 如本技术领域内的技术人员所公知的,缩写词ALR代表自动锁定牵引器。 As those skilled in the art is well known, the acronym ALR Representative automatic locking retractor. 在大多数情形中,为了致动ALR操作模式,在座椅系带围绕儿童座椅放置之前,如果不是全部的座椅系带的织带手工地从卷轴中拉出或延伸,则座椅系带可被释放而围绕住儿童座椅。 In most cases, to actuate the ALR mode of operation, before the seat tether of the child seat is placed, if not all, of the web manually seat tether is pulled out or extended from the spool, the seat tether around It may be released and surrounds the child seat. 当座椅系带的织带的最后的部分从卷轴中拉出时,现有技术的牵引器进入自动锁定模式(ALR)的操作模式。 When the last portion of the seat belt webbing is pulled out lines from the spool, the prior art retractor enters the automatic operation mode-locking mode (ALR) is.

[0007] ALR机构通常包括一个或多个齿轮,它们随牵引器卷轴转动并有效地测量已从卷轴移出的织带的长度。 [0007] ALR mechanism typically includes one or more gears, which rotate with the retractor spool and efficiently measure the length of webbing from the reel removed. 当织带从卷轴拉出时,ALR机构通常呈现机械的特征,它致使牵引器进入自动锁定的操作模式。 When the webbing is pulled out from the spool, the ALR mechanism typically presents a mechanical feature, which causes the retractor enters the automatic locking mode of operation. 一显示在US 5 904 371中的这样的ALR机构有选择地在座椅系带模式中的最后部分的延伸上偏置一ALR棘爪与棘轮接合。 A display for selectively such ALR mechanism in US 5 904 371 in the extending portion of the last seat tether mode biasing a ratchet engagement with the ALR pawl. 将ALR棘爪偏置到棘轮上可起动由车辆敏感的锁定机构提供的牵引器的锁定。 ALR pawl to bias the ratchet activatable locking retractor is provided by the vehicle sensitive locking mechanism. 当延伸织带的长度回绕在卷轴上时,座椅系带牵引器将保持在ALR的操作模式中,并在系带全部收回后,将座椅系带牵引器返回到ELR操作模式。 When the length extending rewind webbing on the spool, the seat belt retractor system will remain in the ALR mode of operation and the lacing fully recovered, the seat belt retractor system returns to ELR mode of operation.

[0008] US 5 904 371中的ALR机构包括一弹簧加载的杠杆,它实际地保持脱开与ALR棘爪的接合。 [0008] US ALR mechanism comprising a 5,904,371 a spring-loaded lever, it is actually held in engagement with the ALR pawl disengaged. 弹簧加载构件偏置在随卷轴转动的凸轮盘的边缘上。 Edge with the spring loaded member is biased in the rotation of the spool on the cam disk. 卷轴转动对应于事实上的全部织带从卷轴移去而转过预定转数之后,凸轮盘转动到一位置而对弹簧加载杠杆呈现一槽。 In fact, after the spool rotation corresponding to all of the webbing from the spool is removed and rotated through a predetermined number of revolutions, the cam plate is rotated to a loading position of the lever presenting a slot of springs. 此后,弹簧加载杠杆落入槽内,接合ALR杠杆的一表面,并移动ALR棘爪而与棘轮的一齿接合,从而起动座椅系带牵引器的锁定。 Thereafter, the spring-loaded lever falls groove engaging a surface of the ALR lever and moves the ALR pawl into engagement with a tooth of the ratchet wheel, thereby locking seat tether starting tractor.

发明内容 SUMMARY

[0009] 本发明的一座椅系带牵引器克服了现有技术座椅系带牵引器中所述的诸多问题。 [0009] a seat belt retractor system according to the present invention overcomes the prior art seat belt retractor system in the many problems.

[0010] 根据本发明,提供一座椅系带牵引器,具有至少三种操作模式:一ELR模式、一ALR 模式和一收藏模式,以及一ELR机构和一ALR机构; [0010] According to the present invention, there is provided a seat belt retractor system having at least three modes of operation: an ELR mode, an ALR mode and a collection mode, and an ELR mechanism and an ALR mechanism;

[0011] ELR机构包括: [0011] ELR mechanism comprising:

[0012] 一牵引器锁定机构,包括一由锁定杯支承的惯性质量,以及一传感器棘爪,该传感器棘爪响应于车辆过度的减速度通过惯性质量而运动,从而接合棘轮,棘轮可随座椅系带牵引器的卷轴运动; [0012] a retractor locking mechanism comprising a lock cup supported by the inertial mass, and a sensor pawl, the movement of the inertial mass and sensor pawl in response to excessive vehicle deceleration to engage the ratchet wheel, the ratchet can seat with chair tether spool movement of the tractor;

[0013] 传感器棘爪通过一具有一凸轮随动件的杠杆运动,而与棘轮接触和脱开与其接触; [0013] The sensor pawl by a movement of the lever having a cam follower member, and disengagement contact with the ratchet wheel in contact therewith;

[0014] 座椅系带牵引器构造成:在传感器棘爪与棘轮接合后,锁定杯运动而使锁定棘爪接合锁定轮,由此,防止进一步松开卷轴和撤回系带;以及 [0014] The seat belt retractor system is configured to: after the sensor engages with the ratchet pawl, the movement of the locking pawl lock cup engage the locking wheel, thereby preventing further release spool and the belt withdrawal lines; and

[0015] ALR机构包括: [0015] ALR mechanism comprising:

[0016] 一形成在锁定杯上的环齿轮; [0016] a ring gear formed on the lock cup;

[0017] 一偏心齿轮,具有一随卷轴可转动并被接纳在摆动齿轮内的外表面,摆动齿轮可转动地接合环齿轮的齿; [0017] an eccentric gear, having a rotatable spool with an outer surface and received in the swing gear, the wobble gear rotatably engaging the teeth of the ring gear;

[0018] 摆动齿轮包括一可随其运动的突出部,摆动齿轮和突出部构造成与卷轴或座椅系带牵引器的一轴一致而相对于环齿轮转动和轨道运行; [0018] with the wobble gear including a projection which may be moving, the wobble gear and projection configured as a spool or shaft coincides with the seat belt retractor of the system relative to the ring gear rotation and orbit;

[0019] 一第一凸轮盘,具有同心于一轴线的一外凸轮表面,外凸轮表面具有一缺口,使凸轮表面通过多个柔性短小突出部可转动地保持在锁定杯上,第一凸轮盘具有一弧形槽,突出部被可运动地接纳在其中,弧形槽具有两个端部,以便周期性地接合突出部,在突出部接合弧形槽的端部后,第一凸轮盘随突出部沿第一方向转动,而在突出部接合弧形槽的另一端部后,沿相反的第二方向转动,其中,杠杆通过一偏置弹簧朝向外凸轮表面偏置; [0019] a first cam disk having an outer cam surface concentric to an axis, the outer cam surface having a notch, the cam surface by a plurality of flexible tabs rotatably held on the lock cup, the first cam plate having an arcuate groove, the protrusion is movably received therein, the arcuate groove having two end portions, to periodically engage the protruding portion, the protruding portion engages the rear end of the arcuate groove, the first cam disk with a first projection direction of the rotational direction, and after the projection engages the other end of the arcuate groove, a second rotational direction opposite to the direction in which the lever by a biasing spring biased toward the outer surface of the cam;

[0020] 一第二凸轮盘,相对于锁定杯和环齿轮、以及第一凸轮盘和摆动齿轮可转动,第二凸轮盘有选择地转动,以便有选择地阻止凸轮随动件进入缺口内,第二凸轮盘包括一插座, 以松动地接纳突出部,第二凸轮盘随突出部转动,第二凸轮盘还包括一大致地与插座的位置相对的向外延伸的第一凸轮表面,以及一定位在其间的朝向外的第二凸轮表面; [0020] a second cam plate, relative to the lock cup and ring gear, and a first swing gear and a cam plate rotatable, the second cam disk selectively rotatable to selectively prevent the cam follower member into the notch, the second cam plate comprises a socket to loosely receive projection, the second cam disk rotatable with projection, the second cam plate further includes a first cam surface and the position of a socket extending generally outwardly relative, and a positioned therebetween on the outer surface toward the second cam;

[0021] 上述部件构造成:当围绕卷轴被接纳的系带从一完全收藏的状态延伸到一完全延伸的状态时,允许摆动齿轮围绕环齿轮沿系带回绕的方向运动,第一凸轮盘保持处于一不可转动的状态,直到突出部推压在弧形槽的端部上时,第二凸轮盘可随突出部的运动而转动;以及 [0021] The member is configured to: when the spool is received around the tether extending from a state to the full collection of a fully extended, allowing the swing gear train back around the ring gear in the direction of the movement about the first cam plate maintained in a non-rotatable state until the projection is pressed on the end of the arcuate groove, the second cam plate is rotatable with the movement of the protruding portion; and

[0022] 各部件构造成:在收藏模式中,使所有的系带基本上位于卷轴上,第二凸轮表面定位在缺口上,推压凸轮随动件远离第一凸轮盘的凸轮表面。 [0022] Each member is configured to: in the collection mode, with substantially all of the lines located on the spool, the second cam surface is positioned in the notch, the cam follower is pushed away from the cam surface of the first cam plate.

[0023] 在本发明中,使用一与其它部件合作的单一的杠杆来控制座椅系带牵引器的锁定模式(ELR/ALR)。 [0023] In the present invention, in cooperation with a single lever to control the other components of the seat belt retractor system locking mode (ELR / ALR). 当座椅系带完全地收藏在牵引器的卷轴上时,杠杆移动到一位置,其将传感器棘爪偏置在一车辆惯性质量上,以便有效地封闭ELR操作模式。 When the seat belt system is completely stowed on the retractor spool, the lever is moved to a position which the sensor pawl biased in a vehicle inertia mass to effectively closed ELR mode of operation. 在延伸一小量的织带后,牵引器进入一ELR操作模式。 After extending a small amount of webbing, a retractor into the ELR mode of operation. 在正常的使用模式中,座椅系带的一些织带围绕一车辆乘坐者延伸,牵引器将保持在ELR操作模式中,然而,牵引器不进入ALR操作模式,直到全部座椅系带从牵引器中拉出之后才进入该模式。 In normal use mode, some of the webbing of a seat tether extending around a vehicle occupant, the retractor will remain in the ELR mode of operation, however, does not enter the tractor ALR mode of operation until all from the tractor seat tether before entering this mode, after the pull-out.

[0024] 当座椅系带围绕一儿童座椅放置时,才发生该座椅系带的延伸。 [0024] When the seat belt system placed around a child seat, the seat tether extending it occurs. 在ELR操作模式中,杠杆从传感器棘爪移位,允许传感器棘爪和车辆惯性质量响应于车辆的动态条件而移动。 In the ELR mode of operation, the shift lever from the sensor pawl, the sensor pawl and allow the vehicle to move the inertial mass in response to the dynamic conditions of the vehicle. 在ALR操作模式中,杠杆偏置传感器棘爪与棘轮合作。 In the ALR mode of operation, the sensor bias the lever to cooperate with the ratchet pawl. 变化到自动锁定模式(ALR)是有效的,其不依赖于座椅系带的织带的最后部分的拉出,而依赖于卷轴沿从全部延伸的状态收回的方向的初始角转动。 Is changed to the automatic locking mode (ALR) is effective, which does not depend on the final portion of the webbing pulled out of the seat belt system, but depends on the spool in a direction from the retracted state extend all the initial angular rotation. 座椅系带收回之初,较之在全部延伸的织带上起动ALR模式, 进入ALR的操作模式导致在传感器棘爪上较小的应变。 Beginning seat tether to recover, compared with all of the webbing in the ALR mode start extending into the ALR mode of operation results in less strain on the sensor pawl.

[0025] 附图的简要说明 [0025] BRIEF DESCRIPTION

[0026] 图1示出实施本发明的一座椅系带牵引器。 [0026] FIG. 1 shows an embodiment of the present invention is a seat belt retractor system.

[0027] 图2是实施本发明的一ELR和ALR锁定机构的分解的立体图。 [0027] FIG. 2 is an ELR and ALR embodiment of the present invention is an exploded perspective view of the locking mechanism.

[0028] 图3示出现有技术的座椅系带牵引器采用的锁定机构,其中,座椅系带的织带收藏在卷轴上。 [0028] FIG. 3 shows a prior art seat belt retractor system using a locking mechanism, wherein the seat strap webbing stowed on the spool.

[0029] 图4示出现有技术的座椅系带牵引器采用的锁定机构,其中,座椅系带的织带完全地延伸。 [0029] FIG. 4 shows a prior art seat belt retractor system using a locking mechanism, wherein the seat tether webbing fully extended.

[0030] 图5是一锁定杯的立体图。 [0030] FIG. 5 is a perspective view of a locking cup.

[0031] 图6示出座椅系带完全地回绕到牵引器卷轴上到达一收藏位置时的锁定部件。 [0031] FIG. 6 shows the locking member when the seat belt is completely rewound based on the retractor spool reaches a stowed position.

[0032] 图6A示出座椅系带足够地拉出致使起动ELR操作模式时的锁定部件。 [0032] FIG. 6A illustrates the locking member when the seat tether is pulled out sufficiently so that the start ELR mode of operation.

[0033] 图7示出事实上所有座椅系带从卷轴拉出的锁定部件,就在致动ALR操作模式之前。 [0033] FIG. 7 illustrates the fact that all seat tether pulled out from the reel lock member, before the ALR mode of operation to the actuator.

[0034] 图8示出ALR操作之初各种锁定部件的位置。 [0034] FIG. 8 shows the locking position of the beginning of ALR operation of the various components. 具体实施方式 Detailed ways

[0035] 图1和2示出实施本发明的座椅系带牵引器20。 [0035] Figures 1 and 2 illustrate an embodiment of the present invention, a seat belt retractor system 20. 座椅系带牵引器20包括一框架22,其以已知的方式可转动地支承一卷轴24。 The seat belt retractor system 20 comprises a frame 22, which in a known manner rotatably supports a spool 24. 座椅系带的织带28围绕卷轴24卷绕,并可从卷轴延伸和回绕到卷轴上。 Seat tether webbing 28 is wound around the spool 24, and may extend from a reel and rewound on the reel. 座椅系带牵引器20包括一初级锁定系统30,它包括具有多个齿34的锁定轮32 (也称之为棘轮)。 The seat belt retractor system 20 includes a primary locking system 30, which comprises a locking wheel having a plurality of teeth 32 (also referred to as a ratchet) 34. 一锁定棘爪36具有一个或多个齿38。 A locking pawl 36 having one or more teeth 38. 锁定棘爪36也可包括一传感器棘爪销39,其功能起作为一凸轮随动件。 The locking pawl 36 may also include a sensor pawl pin 39, from its function as a cam follower.

[0036] 座椅系带牵引器20是一双模式牵引器,其具有ELR和ALR操作模式。 [0036] The seat belt retractor system 20 is a pair of traction pattern having ELR and ALR modes of operation. 如本技术领域内所公知,且如本文和附后权利要求书中所采用的,ELR意味一紧急锁定牵引器。 As well known in the art, and as used herein and in the appended claims is employed, the ELR means an emergency locking retractor. ELR的一实例揭示在EP 0 228 729 Al中,其通常包括一个或多个惯性锁定机构。 Examples of an ELR disclosed in EP 0 228 729 Al, which is typically includes one or more inertial locking mechanisms. 如本技术领域内所公知,且如本文和附后权利要求书中所采用的,ALR意味一自动锁定牵引器。 As well known in the art, and as used herein and in the appended claims is employed, the ALR means an automatically locking retractor. ALR机构的一实例揭示在UA 5 904 371中,其有选择地偏置一ALR棘爪,使其与座椅系带的最后部分的延伸部上的一棘轮接合。 Examples of an ALR mechanism is disclosed in UA 5 904 371, which is a selectively biased ALR pawl, a ratchet wheel on extension of the last portion of the seat so as to engage the tether.

[0037] 当处于ELR操作模式时,座椅系带牵引器20利用惯性锁定机构来起动牵引器的锁定,其使锁定棘爪36实现运动而接合锁定轮32。 [0037] When in the ELR mode of operation, the seat belt retractor system 20 to start the inertia locking mechanism locking retractor, which effect movement of the locking pawl 36 engages the locking wheel 32. 这些惯性锁定机构通常称之为牵引器锁定机构40,如图2所示,锁定机构包括一可移动的惯性质量42和一传感器棘爪44。 These inertial locking mechanism commonly referred to as a traction lock mechanism 40, as shown in Figure 2, the locking mechanism comprising a movable inertial mass 42 and a sensor pawl 44. 传感器棘爪包括一延伸销或突出45。 Comprising a sensor pawl pin or projection 45 extends. 传感器棘爪通过一共同作用的杠杆130移动到具有齿48的棘爪轮46内和离开棘爪轮46 (如图1所示)。 The sensor pawl by a movement of the lever 130 interacts with the inner teeth 48 of the ratchet wheel 46 and ratchet wheel 46 away (Figure 1). 轮46随卷轴24转动,并可成为卷轴24的部分。 Wheel 46 rotates with the spool 24, the spool 24 can become part of.

[0038] 惯性质量42响应于过度的车辆减速度而运动,或以滚动或摇摆的方式车辆有大的位移,或座椅系带牵引器安装的表面发生转动,例如,座椅的背,这些运动致使惯性质量移动、滚动或倾斜和接合棘爪44的一相邻的表面44a,由此,置棘爪44与棘轮46的齿接合。 [0038] The inertial mass 42 in response to excessive vehicle deceleration and moving, or rolling or swinging manner to the vehicle with a large displacement, or a seat belt retractor system from rotating mounting surface, for example, a seat back, these movement causes movement of the inertial mass, and engaging a roll or inclined surface 44a adjacent detents 44, whereby the pawl 44 engages with the teeth opposing the ratchet wheel 46. 棘轮46随接合的传感器棘爪的转动致使一相连的锁定杯60转动,如图2和图1中的虚线所示,其表示座椅系带牵引器的锁定。 Rotation sensor pawl engaged with the ratchet wheel 46 causes a rotation of the cup 60 is connected to the lock, and the dashed line in FIG. 1 shown in FIG. 2, which represents the locking of the seat belt retractor system. 锁定杯60是弹簧偏置的,弹簧通常作用在框架22上或其它静止的牵引器构件上,这样的弹簧用箭头68表示,其反作用于框架上的一突台或突出69上。 Lock cup 60 is a spring biased, normally the spring acts on the tractor or other stationary member, such as a spring indicated by arrow 68 on the frame 22, the frame which counteracts a ledge or protrusion 69.

[0039] 座椅系带牵引器20利用一锁定杯60来支承惯性质量42,惯性质量由一篮子42a 或其它已知支承结构支承。 [0039] The seat belt retractor system 20 utilizes a lock cup 60 to support the inertial mass 42, the inertial mass is supported by a basket 42a or other known support structure. 该篮子被接纳在锁定杯60的一壁61内。 The basket is received within the locking wall 61 of the cup 60. 篮子相对于壁61固定或移出。 Basket 61 is fixed relative to the wall or removed. 传感器棘爪44与棘轮46的接合将锁定杯60连接到棘轮46或卷轴24,这致使锁定杯随卷轴转动,至少转动到一定的限制度数。 The sensor pawl 44 engages with the ratchet wheel 46 of the locking cup 60 is connected to the ratchet spool 46 or 24, which causes the lock cup to rotate with the spool, at least to some limited degree of rotation. 锁定杯的转动可移动锁定棘爪36与锁定轮32的齿接合,由此,完成座椅系带牵引器的初始阶段的锁定。 The lock cup rotates movable locking pawl 36 engages the teeth of the locking wheel 32, thereby completing the tractor seat tether initial phase locking. 锁定杯60可包括一凸轮66, 该凸轮接纳锁定棘爪36的凸轮随动件39。 Lock cup 60 may include a cam 66, the pawl 36 of the cam lock receiving the cam follower member 39. 锁定杯60的转动可使锁定棘爪36围绕一轴线36a转动而与锁定轮32的齿接合。 60 can lock cup rotates the locking pawl 36 engages with the locking tooth wheel 32 rotatable about an axis 36a.

[0040] 如果座椅系带牵引器20包括一诸如一扭转杆之类的能量吸收机构,则在座椅系带牵引器20初始地锁定之后,允许卷轴转动,并在扭转杆扭转时以一控制的方式允许座椅系带从卷轴24中延伸。 [0040] If the seat belt retractor system 20 comprises a rod, such as a torsional energy absorbing mechanism like, then after the seat belt retractor system 20 initially locked, allowing rotation of the spool, and a torsion bar twisted to in a controlled manner to allow the seat tether extending from the reel 24. 座椅系带牵引器20还可包括一织带传感器(未示出),它响应于织带离牵引器过度的延伸率而起动座椅系带牵引器的锁定。 The seat belt retractor system 20 further comprises a webbing sensor (not shown), from excessive elongation is started locking retractor of the seat belt retractor system in response to the web. 该织带传感器容纳在如UA 5 904 371和EP 0 228 729 Al中所示的锁定杯内。 The webbing sensor is accommodated in such UA 5 904 371 and EP 0 228 729 Al as shown in the locking cup. 织带敏感的锁定机构的致动也将锁定杯连接到卷轴,由此,也致使锁定棘爪和锁定轮接合。 Webbing-sensitive locking mechanism is actuated the locking cup also coupled to the spool, thereby also causing the lock pawl and locking wheel engagement.

[0041] 在所有的时间过程中,座椅系带牵引器20将保持在ELR操作模式中,仅当所有座椅系带的织带收回到卷轴上时,即处于收藏状态,或当处于ALR操作模式时,它结合座椅系带的织带围绕一儿童座椅放置时发生,才是例外的情况。 [0041] At all times during the seat belt retractor system 20 will remain in the ELR mode of operation, only when the webbing is retracted on the spool seat tether all, i.e., stowed state, or when in the ALR operation when the case mode, which combines the webbing seat tether occurs when a child seat is placed around, it is the exception.

[0042] 本发明的ALR锁定机构80利用多个本技术领域内已知的部件。 ALR [0042] The locking mechanism 80 of the present invention utilizing a plurality of known in the technical field of the present members. 这些已知部件包括有一环齿轮79、一中心或偏心齿轮90、一可移动的或摆动的齿轮100,以及一凸轮盘110 (如图2和3所示)。 These known components include a ring gear 79, a center or eccentric gear 90, a gear or a movable pivot 100, and a cam plate 110 (FIGS. 2 and 3). 环齿轮80具有多个齿82,在本发明的优选实施例中,其一体地形成在锁定杯60的一表面上。 The ring gear 80 having a plurality of teeth 82, in this embodiment, which is integrally formed on a surface of the locking cup 60 in the preferred embodiment of the present invention. 中心、偏心的齿轮90固定在卷轴24上并随其一起转动。 Center, eccentric gear 90 and is fixed to the spool 24 rotates therewith. 卷轴24包括一短轴或突出27 (如图1和3所示),它延伸通过锁定杯内的一开口62,并被接纳在中心齿轮90后表面上的一孔内,由此,允许中心齿轮90随卷轴移动。 Reel 24 comprises a stub or protrusion 27 (FIG. 3 and FIG. 1), which extends through a locking opening in the cup 62, and is received in a bore on the rear surface of the sun gear 90, thereby allowing the center 90 with the movement of the reel gear. 中心齿轮90包括一接纳在可移动的、摆动的齿轮100的一开口102内的偏心的外表面92,以及一与开口62同心的并接纳在一凸轮盘110的开口112内的突起的表面94。 The sun gear 90 includes a receiving on a movable, swinging gear an eccentric outer surface of the inner 102 opening 100 of 92, and an opening 62 concentric with and received within an opening of the cam plate 112 of the projection surface 94 .

[0043] 可移动的、摆动的齿轮100具有一中心定位的开口102和多个与环齿轮80的齿82 接合的齿104。 Opening 102 and a plurality of teeth of the ring gear 80 engage the teeth 104 82 [0043] The movable, wobble gear 100 having a centrally located. 当中心齿轮90随卷轴转动时,可移动的齿轮100转动并围绕环齿轮80形成轨道。 When the sun gear 90 rotates with the spool, the movable gear 100 rotates and the ring gear 80 is formed around the track. 该可移动的齿轮100还包括一直立的销或突出106。 The movable gear 100 further includes an upstanding pin or projection 106.

[0044] 凸轮盘110具有一形成一凸轮表面114的同心外表面。 [0044] The cam plate 110 has a concentric outer surface forming a cam surface 114. 凸轮表面具有至少一个主缺口116和一深度较浅的供选择的小缺口116a。 At least one primary cam surface having a notch 116 and the shallower depth alternative small gap 116a. 凸轮盘110具有一弧形槽118,可移动齿轮100的突出106被接纳在其中。 The cam disk 110 has an arcuate slot 118, the movable gear protrusion 106,100 is received therein. 当一杠杆允许全部进入缺口116内时,座椅系带牵引器将进入ALR操作模式。 When a lever into the notch 116 allows all of the seat belt retractor will enter based ALR mode of operation.

[0045] 现有技术的ALR机构示于图3和4中。 [0045] ALR mechanism shown in prior art FIGS. 3 and 4. 现有技术的ALR机构具有一弹簧加载的杠杆230,如同UA 5 904 371中所揭示的元件102—样,它起作一凸轮随动件232并也用来致动一ALR棘爪234,如UA 5 904 371的棘爪80 —样,以起动ALR操作模式。 The prior art ALR mechanisms have a spring-loaded lever 230, like UA 102- Sample 5,904,371 disclosed elements, as it plays a cam follower 232 and also used to actuate an ALR pawl 234, as UA 5 904 371 of the pawl 80-- like to start the ALR mode of operation. 本发明具有一弹簧加载的杠杆130,它包括上述的功能,与现有技术相比,它还包括新的功能。 Lever 130 has a spring-loaded of the present invention, comprising the above-described functions, as compared with the prior art, it also includes new features. 杠杆130 包括一已知类型的突出132,其起作一凸轮随动件的功能。 Lever 130 includes a projection 132 of a known type, which serves as a cam follower member function. 凸轮随动件132通过一偏置弹簧130a偏置作用在凸轮表面114上,有时,弹簧用一箭头表示。 Cam follower 132 on the cam surface 114, at times, indicated by an arrow by a spring 130a biasing action of a biasing spring.

[0046] 现有技术的ALR机构在实际上所有座椅系带从卷轴24延伸后被致动。 [0046] ALR mechanism in virtually all of the prior art seat tether extending from the reel 24 after actuation. 图3和4显示一现有技术的座椅系带牵引器的操作,目的在于示出座椅系带牵引器20的某些部件。 Figures 3 and 4 show the seat belt retractor system of a prior art operation, certain components of the object shown tractor seat tether 20. 在现有技术的ALR机构中,其中,所有的座椅系带的织带围绕卷轴卷绕,ALR机构的各种部件达到图3所示的一定向。 In the prior art ALR mechanism, wherein all seat tether webbing is wound around the spool, the various components of the ALR mechanism achieve an orientation as shown in FIG. 3. 凸轮随动件232将本身定位在小缺口116a内,它防止凸轮盘110 过早地运动。 The cam follower 232 is positioned within a small gap itself 116a, which prevents premature movement of the cam disc 110. 当织带从卷轴中拉出时,卷轴的转动致使中心齿轮90转动,其又移动可移动的齿轮100,齿轮100又致使突出106转动并围绕环齿轮80形成轨道,还致使突出106在凸轮盘110的槽118内移动。 When the webbing is pulled out from the spool, rotation of the spool causes the sun gear 90 is rotated, which in turn moves movable gear 100, and gear 100 to rotate the projection 106 and the ring gear 80 is formed around the track, but also causes the cam plate 110 in the projection 106 the groove 118 within the mobile. 当越来越多座椅系带的织带28从卷轴中延伸出时,突出106将移动一足够的距离而接触槽118的端部120 (见图4),由此,致使凸轮盘110随齿轮100的移动而转动。 As more and more seat belt webbing 28 extending line from the reel, the protrusion 106 will move a sufficient distance from end 120 and a contact groove 118 (see FIG. 4), thereby causing the cam disk 110 with the gear movement 100 is rotated.

[0047] 现有技术的齿轮机构构造成:当事实上所有的织带已经从卷轴移出时,凸轮盘110将对凸轮随动件232呈现槽116,这致使凸轮随动件被推入槽116内。 [0047] The prior art gear mechanism is configured to: when virtually all of the webbing has been removed from the spool the cam disk 110 will cam follower member 232 presents grooves 116, which causes the inner cam follower member 116 is pushed into the groove . 该动作在本发明中不发生,因为使用了一第二凸轮盘150。 This action does not occur in the present invention, since the second cam plate 150 a. 此后,杠杆230提升ALR棘爪234使其与棘轮46的齿接合而起动ALR操作模式,它在座椅系带全部或基本上全部延伸之后起动。 Thereafter, the lever 230 so as to enhance the ALR pawl 234 engages the ratchet teeth 46 of the ALR mode of operation is started, it is started after all of the seat belt system extending or substantially all of the. 现有技术的座椅系带牵引器将保持在该操作模式中,直到织带24全部地收回为止。 The prior art seat belt retractor system will remain in this mode of operation until the webbing 24 fully retracted so far. 在现有技术的ALR机构中,当织带24收回时,中心齿轮相对地移动致使可移动齿轮90和突出106与先前运动相反的方向移动。 In the prior art ALR mechanism, when the webbing 24 withdrawn, so that the sun gear moves relative to the movable gear 90 and the projection 106 is moved in a direction opposite the previous movement. 当织带收回时,突出106接合槽118的相对端122,相反方向推动凸轮盘(图3中逆时针方向)。 When the webbing withdrawn, the engagement protrusion 106 opposite end 122 of the slot 118, pushing the cam plate in the opposite direction (counterclockwise in FIG. 3). 这推动凸轮随动件132沿槽116的坡度表面124向上移动并变得重新定位在凸轮表面114的外表面上。 This member pushes the cam follower along the slope surface 124,132 groove 116 moves upward and become repositioned on the outer surface of the cam surface 114. 该运动使杠杆与ALR棘爪脱开并结束ALR操作模式。 This movement and the lever is disengaged ALR pawl and ends the ALR mode of operation.

[0048] 返回到本发明中来,再次参照图2和5。 [0048] Back to the present invention, with reference again to FIGS. 2 and 5. 锁定杯60包括多个弹性地朝向内的柔性短小突出部64,它们围绕环齿轮80均勻地定位,并与锁定杯60的开口62同心。 Lock cup 60 includes a plurality of resiliently flexible tabs facing the inner portions 64, 80 are positioned uniformly around the ring gear, and concentric with the locking opening 62 of the cup 60. 凸轮表面114被接纳在这些短小突出部64内,它们定位凸轮盘110与开口62以及卷轴24的转动轴线保持同心。 The cam surface 114 is received within these tabs 64, cam plate 110 are positioned with the opening 62 and the axis of rotation of the spool 24 remain concentric. 各个短小突出部64具有一突起壁部分64a以及一向内延伸的壁部分。 Each of the tabs 64 has a projecting wall portion 64a and an inwardly extending wall portion. 凸轮表面114骑在突起壁部分64a的内壁上,而朝向内的壁部分64b防止凸轮盘的外边缘移离锁定杯和环齿轮。 The cam surface 114 rides on the interior wall protrusion portion 64a, and inner wall portion 64b toward the outer edge of the cam plate to prevent the removal from the lock cup and ring gear.

[0049] 本发明的ALR机构还包括一第二凸轮盘150,其帮助控制起动ALR操作模式,以在织带全部延伸之后回绕在卷轴上就开始。 [0049] The ALR mechanism of the present invention further comprises a second cam plate 150, which help to control start ALR mode of operation, after extending to full rewind the webbing on the reel starts. 与杠杆130接触的该第二凸轮盘也对传感器棘爪44提供有控制的偏置,以在座椅系带完全收回到卷轴上或接近收回时对惯性质量42提供一稳定的力,从而消除振动和噪音源。 The second cam plate 130 in contact with the lever 44 is also provided with a sensor-controlled pawl biased to seat tether when the spool is fully retracted or nearly retracted for providing a stable force for the inertial mass 42, thereby eliminating vibration and noise sources. 凸轮盘150还允许杠杆到达一中间位置而起动ELR 操作模式。 The cam disk 150 also permits the lever reaches an intermediate position ELR mode of operation is started.

[0050] 第二凸轮盘150包括一具有一薄的内轮缘153的圆环形壁152。 [0050] 150 comprises a second cam plate having a thin inner annular wall 152 of the rim 153. 轮缘153由第一凸轮盘110可转动地支承。 The rim 153 is rotatably supported by the first cam plate 110. 第一凸轮盘110包括多个类似于突出部64结构的朝向内的短小的突出部156。 A plurality of first cam plate 110 includes a similar short portion protruding toward the inner structure 64 of the projection 156. 短小突出部156包括一从凸轮盘110的表面延伸的第一壁部分158a和一朝向外的部分158b。 Tabs 156 includes a first wall portion 158b and portion 158a outwardly once the surface of the cam plate 110 extending from a. 部分158a的内表面沿径向稳定环形壁152,而一部分158b保持住轮缘153,并因此保持住第二凸轮盘150。 Inner surface portion 158a of the annular wall 152 radially stable, and a portion 158b holds the rim 153, and thus hold the second cam plate 150. 第二凸轮盘150还包括一其中具有一开口162的朝向内的插座160,以便松弛地接纳移动齿轮100的突出部106。 The second cam plate 150 further comprises a receptacle having an opening 160 in the direction 162, so as to loosely receive the projection 106 moving the gear 100. 第二凸轮盘包括一大致与插座160相对地定位的第一圆形突出或凸轮表面164和一第二圆形突出或凸轮表面166。 The second cam plate 160 with the receptacle comprises a generally positioned opposite the first lobe or cam surface 164 and a second lobe or cam surface 166.

[0051] 当座椅系带织带从卷轴中延伸,从一完全的收藏状态到一完全延伸的状态,摆动齿轮100的突出部106大致地形成一圆形轨道,其圆心对中在一与卷轴的轴线共线的轴线上,同时,围绕圆以较高频率转动或摆动,使这样的运动约束在槽118内。 [0051] When the state of the seat belt webbing extending line from the spool, from a fully extended to a fully stored state, the projecting portion 106 of the wobble gear 100 is formed a substantially circular trajectory with a center of the reel in a on an axis collinear to the axis, while, at a higher frequency, or is rotated around the swing circle, so that such movement constrained within slot 118. 槽118提供锁定机构一定程度的空转,即,当突出部106不推在槽118的端部上时,第一凸轮盘110将不移动。 Means locking groove 118 provides a certain degree of lost motion, i.e., when the projection 106 is not pushing on the ends of the groove 118, the first cam disk 110 will not move. 在织带延伸过程中,突出部106以顺时针方向(相对于图6)直接地移动第一凸轮盘, 并在织带收回过程中,以逆时针方向移动。 In the webbing extension process, the projecting portion 106 in a clockwise direction (with respect to FIG. 6) directly moves the first cam disk, and in the webbing retraction to move counterclockwise. 当突出部或销106如所述地移动时,它也在第二凸轮盘150的插座160的开口162内转动,并承载带有销106的第二凸轮盘150。 When the projection or pin 106 moves as the ground, it is also within the receptacle opening 162 of the second cam plate 150 is rotated 160, and carries the second cam plate 106 with the pin 150. 第二凸轮盘150将大致地循着摆动齿轮100的转动而沿顺时针和逆时针方向转动。 The second cam plate 150 to substantially follow the rotation of the pendulum gear 100 is rotated clockwise and counterclockwise directions.

[0052] 图6示出座椅系带已经完全地回绕到牵引器卷轴上到达一收藏位置时的锁定部件的位置。 When the position of the locking member [0052] FIG. 6 shows the seat belt system has been fully rewound on the retractor spool reaches a stowed position. 在此状态中,ELR锁定机构封闭而不使用。 In this state, ELR locking mechanism is closed without being used. 在此状态下,凸轮表面166推凸轮随动件132远离凸轮盘110的凸轮表面114。 In this state, the cam surface 166 to push away from the cam surfaces 114,132 of cam follower plate 110. 凸轮表面166移动凸轮随动件132远离卷轴中心一更大的距离。 The cam surface 166 moves cam follower center of the spool member 132 a greater distance away.

[0053] 当座椅系带织带从座椅系带牵引器中延伸时,卷轴将沿顺时针方向(相对于图6 而言)转动;齿轮机构的各个部件将类似地转动。 [0053] When the seat belt webbing retractor tether lines extending from the seat, the spool (FIG. 6 relative terms) rotates in a clockwise direction; each member of the gear mechanism rotatably similarly. 当织带抽出时,摆动齿轮100通过突出部106和插座160沿顺时针方向(见第二凸轮盘上的箭头)移动第二凸轮盘150。 When webbing is withdrawn through the pendulum gear 100 in a clockwise direction of the protruding portion 160 and the socket 106 (see arrow on the second cam plate) to move the second cam plate 150. 当突出部或销106移离槽118的端部122进入一自由区域时,第一凸轮盘将基本上保持在初始的位置上。 When the projection or pin 106 away from end 122 move in the groove 118 enters a free area, the first cam plate will be substantially held at the initial position. 在座椅系带已经稍许延伸之后,第二凸轮盘将通过突出部或销106沿顺时针方向充分地移动而允许凸轮随动件132落在第一凸轮盘110的凸轮表面114上。 After the seat belt has been slightly extended system, the second cam disk will be moved sufficiently by the projection or pin 106 in the clockwise direction to allow the cam follower on the cam surface 114 132 first cam plate 110 falls. 在此操作模式中,凸轮随动件132向内移动到凸轮表面114,它又移动杠杆132的端部140远离传感器棘爪44的销45。 In this mode of operation, the cam follower 132 moves inwardly to the cam surface 114, it moves the end portion 132 of the lever 140 remote from the sensor pawl pin 4544. 该动作允许座椅系带牵引器进入到ELR操作模式,如图6A所示。 This action allows the seat belt retractor system proceeds to ELR mode of operation, shown in Figure 6A. 图6A示出当座椅系带已经拉出一预定量时(其中ELR操作模式起动,然而,ALR模式未予提供),由锁定部件所达到的位置。 6A shows when the seat belt has been pulled out of line by a predetermined amount (ELR mode of operation wherein the start, however, the ALR mode has not been provided), the locking member from the position reached. [0054] 在图5中,杠杆130可转动地安装在锁定杯60。 [0054] In FIG. 5, the lever 130 is rotatably mounted in the lock cup 60. 锁定杯在图6、6a、7和8中未示出。 In FIG lock cup 6,6a, 7 and 8 are not shown. 图中仅示出一销60a,它是锁定杯的部分且可转动地支承杠杆130。 Figure shows only part of a pin 60a, which is the lock cup and the lever 130 is rotatably supported.

[0055] 图7示出当事实上所有座椅系带从卷轴中拉出时,就在ALR操作模式致动之前由锁定部件达到的位置。 [0055] FIG. 7 shows that when virtually all of the seat tether is pulled out from the spool, just before the ALR mode of operation to achieve the actuated position by the locking member. 第二凸轮盘150构造成位于凸轮盘110的槽116的上方,基本上就在所有织带28已经抽出之前(如图7所示)。 Second cam plate 150 is configured to be positioned above the groove 116 of the cam plate 110, substantially all just before the webbing 28 has been drawn (see Figure 7). 圆形突出或表面164放置在槽116上方可防止杠杆130的凸轮随动件132进入槽116内。 Lobe or surface 164 is placed over the groove 116 of the cam lever 130 prevents the follower 132 enters the slot 116. 就如现有技术所描述的,在织带28完全抽出后,这阻止座椅系带牵引器进入ALR操作模式。 As described in the prior art, when the webbing 28 is fully withdrawn, which prevents the seat belt retractor system enters the ALR mode of operation. 表面164的径向范围不是关键的,它可与表面114的径向范围相同,当它起作一阻挡表面时可稍微大些或小些。 Radial extent of surface 164 is not critical, which may be the same radial extent of surface 114, when it is made from a surface of the barrier may be slightly larger or smaller. 在织带28释放或沿延伸方向保持织带的力减小之后,织带将通过回绕弹簧29的操作开始回绕到卷轴上(见图1)。 After the webbing 28 to release or reduce the holding force in the extending direction of the webbing, the webbing 29 by the operation of wrap spring on the reel rewound start (see FIG. 1). 卷轴24方向的改变导致中心、偏心齿轮90相对地转动,致使移动的、摆动的齿轮100 也相对地移动(图7中逆时针方向)。 Spool 24 results in a change of direction center, the eccentric gear 90 is relatively rotated, resulting in movement of the swing gear 100 is relatively moved (counterclockwise in Figure 7). 该动作致使突出部或销106远离槽118的端部120 运动,当座椅系带延伸时,相对于运动它又沿逆时针方向移动第二凸轮盘150。 This action causes the projection or pin 120 moves away from the end portion 106 of groove 118, when the seat tether extending movement relative to it in a counterclockwise direction moves the second cam plate 150.

[0056] 图8示出ALR操作开始时各个锁定部件的位置。 [0056] FIG. 8 shows the position of the respective locking member at the start of ALR operation. 在盘150转过确定量之后,允许凸轮随动件132在圆形突出166的边缘170上滑动并进入槽116内,因为该动作允许杠杆130向内移动。 After determining the amount of disk 150 is rotated, allowing the cam follower 132 slides on the edge 170 of the lobe 166 and into the groove 116, because it allows the operation lever 130 is moved inwardly. 杠杆130向内运动可提高传感器棘爪44的销45并移动传感器棘爪44使其与棘齿46的齿接合,此时,随着卷轴沿座椅系带收回的方向转动时开始ALR操作模式。 Inward movement of the lever 130 can be improved sensor pawl pin 45 moves the sensor pawl 44 and the ratchet teeth 44 engage it with 46, then, starts with the ALR mode of operation when the spool is rotated in the direction of the retracted seat tether .

[0057] 当卷轴沿回绕方向转动时,突出部106继续移动第二凸轮盘150且与突出部106 的运动同步。 [0057] When the spool rotates in the rewind direction, the protruding portion 106 continues to move the second cam plate 150 and synchronized with the motion of the projecting portion 106. 在织带回绕到卷轴上一确定量之后,突出部106将最终接合槽118的一端部122,由此,再次接合凸轮盘110。 In a webbing rewound after determining the amount of the spool, the projection 106 eventually engages an end portion 118 of the groove 122, whereby the cam plate 110 is engaged again. 其后,第一凸轮盘110返回到对应于如图6所示的全部回绕的卷轴的初始位置,完成该循环并将圆形突出166定位在凸轮随动件132下方,由此,偏置杠杆130,向下或向外地(图6中)远离表面114,或沿逆时针方向(图2中)。 Thereafter, the first cam plate 110 returns to the initial position of all rewound spool shown in FIG. 6 corresponds to, completing the cycle and positioning the lobe 166 under the cam follower 132, thereby biasing the lever 130, downwardly, or outwardly (FIG. 6) away from the surface 114, or in a counterclockwise direction (FIG. 2).

[0058] 当杠杆130在与第二凸轮盘150的圆形突出166接合后向外推第二凸轮盘150时, 传感器棘爪44的销45通过一表面向下偏置,以将传感器棘爪44保持在惯性质量42的顶部上。 [0058] When the lever 130 pushes the second cam plate 150 in the second cam plate 150 and the circular protrusion 166 engages outward, the sensor pin 45 of the pawl 44 biased downwardly by a surface to the sensor pawl 44 remains on the top 42 of the inertial mass. 杠杆130具有一远端134,该远端具有一形成一开口138的环136。 Lever 130 has a distal end 134 and a distal end having an opening 138 formed in a ring 136. 传感器棘爪44的销45被接纳在环136的开口138内。 The sensor pawl pin 4544 is received within the opening 138 of the ring 136. 环的一端140形成一第一接合表面,而环的一相对端142形成一第二接合表面。 One end of the ring 140 is formed a first engagement surface, and an opposite end a second ring engagement surface 142 is formed. 当杠杆130移入槽116内时,第二接合表面142提升销45,因此, 传感器棘爪44与棘轮46接合,如图8所示,起动ALR操作模式。 When the lever 130 into the slot 116, lift pins 142 of the second engagement surface 45, and therefore, the sensor pawl 44 engages with the ratchet wheel 46, shown in Figure 8, starting ALR mode of operation. 如图6所示,在将织带返回到卷轴后,接合表面140推压销45,因此,向下推压传感器棘爪44到惯性质量44上。 6, after the return to the webbing reel, the engagement surface 140 presses the pin 45, thus urging the sensor pawl 44 to the inertial mass 44 downwardly. 不管座椅系带牵引器的实际定向如何,这防止锁定机构被致动而处于收藏位置。 Regardless of the actual orientation of the seat belt retractor system, which prevents the locking mechanism is actuated in the stowed position. 杠杆130通过移动传感器棘爪帮助起动ALR操作模式,还通过阻止传感器棘爪的运动来阻碍ELR操作模式。 By moving the lever 130 to help start the sensor pawl ALR mode of operation, further to impede ELR mode of operation by preventing movement of the sensor pawl.

Claims (10)

  1. 一座椅系带牵引器(20),具有至少三种操作模式:一ELR模式、一ALR模式和一收藏模式,以及一ELR机构和一ALR机构;ELR机构包括:一牵引器锁定机构(40),包括一由锁定杯(60)支承的惯性质量(42),以及一传感器棘爪(44),该传感器棘爪(44)响应于车辆过度的减速度通过惯性质量(42)而运动,从而接合棘轮(46),棘轮(46)可随座椅系带牵引器(20)的卷轴(24)运动;传感器棘爪(44)通过一具有一凸轮随动件(132)的杠杆(130)运动,而与棘轮(46)接触和脱开与其接触;座椅系带牵引器(20)构造成:在传感器棘爪(44)与棘轮(46)接合后,锁定杯(60)运动而使锁定棘爪接合锁定轮,由此,防止进一步松开卷轴(24)和撤回系带;以及ALR机构包括:一形成在锁定杯(60)上的环齿轮(79);一偏心齿轮(90),具有一随卷轴(24)可转动并被接纳在摆动齿轮(100)内的外表面(92),摆动齿轮可转动地接合环齿轮(7 A seat belt retractor line (20), having at least three modes of operation: an ELR mode, an ALR mode and a collection mode, and an ELR mechanism and an ALR mechanism; ELR mechanism comprising: a retractor locking mechanism (40 ), by a locking comprising a cup (inertial mass (42) 60) is supported, and a sensor pawl (44), the sensor pawl (44) in response to excessive vehicle deceleration by an inertial mass (42) is moved, so as to engage the spool ratchet wheel (46), a ratchet (46) with a seat belt retractor line (20) (24) movement; sensor pawl (44) by a member having a cam follower (132) of the lever (130 ) movement, and in contact with and out of engagement with the ratchet wheel (46); a seat belt retractor line (20) is configured to: after the sensor pawl (44) with the ratchet wheel (46) engages the locking cup (60) movement the locking pawls engage the locking wheel, thereby preventing further release the spool (24) and withdrawal of the strap; and the ALR mechanism comprising: forming a ring gear (79) on the lock cup (60); and an eccentric gear (90 ), along with having a reel (24) and is rotatably received in the pivot gear (an outer surface (92) in 100), the swing gear rotatably engages the ring gear (7 9)的齿(82);摆动齿轮(100)包括一可随其运动的突出部(106),摆动齿轮(100)和突出部构造成与卷轴(24)或座椅系带牵引器(20)的一轴一致而相对于环齿轮(79)转动和轨道运行;一第一凸轮盘(110),具有同心于一轴线的一外凸轮表面(114),外凸轮表面(114)具有一缺口(116),使凸轮表面(114)通过多个柔性短小突出部(64)可转动地保持在锁定杯(60)上,第一凸轮盘(110)具有一弧形槽(118),突出部(106)被可运动地接纳在其中,弧形槽(118)具有两个端部(120、122),以便周期性地接合突出部(106),在突出部(106)接合弧形槽(118)的一个端部(120)后,第一凸轮盘(110)随突出部(106)沿第一方向转动,而在突出部(106)接合弧形槽(118)的另一端部(122)后,沿相反的第二方向转动,其中,杠杆(130)通过一偏置弹簧(130a)朝向外凸轮表面(114)偏置;一第二凸轮盘(150),相对于锁定杯(60)和环齿轮、以及第一 9) the teeth (82); the wobble gear (100) comprises a projecting portion with its motion (106), the pendulum gear (100) and the projecting portion is configured to reel (24) or the seat belt retractor line (20 ) consistent with an axis relative to the ring gear (79) and the rotation orbit; a first cam plate (110) having an outer cam surface concentric to an axis (114), an outer cam surface (114) having a notch (116), the cam surface (114) held on the lock cup (60) by a plurality of flexible tabs (64) rotatably, the first cam disk (110) having an arcuate slot (118), projecting portion (106) is movably received therein, the arcuate slot (118) having two end portions (120, 122) to periodically engage projection (106), the engagement projecting portion (106) arcuate slot ( after 118) one end portion (120), the first cam disk (110) rotatable with projection (106) in a first direction, and the projecting portion (106) engaging the arcuate slot (118) in the other end portion (122 after), in a second direction opposite to the rotation, wherein the lever (130) by a bias spring (130a) toward the outer cam surface (114) biased; a second cam plate (150), relative to the lock cup (60 ) and the ring gear, and a first 轮盘(110)和摆动齿轮(100)可转动,第二凸轮盘(150)有选择地转动,以便有选择地阻止凸轮随动件(132)进入缺口(116)内,第二凸轮盘(150)包括一插座(160),以松动地接纳突出部(106),第二凸轮盘(150)随突出部(106)转动,第二凸轮盘(150)还包括一大致地与插座(160)的位置相对的向外延伸的第一凸轮表面(164),以及一定位在其间的朝向外的第二凸轮表面(166);上述部件构造成:当围绕卷轴(24)被接纳的系带从一完全收藏的状态延伸到一完全延伸的状态时,允许摆动齿轮(100)围绕环齿轮(79)沿系带回绕的方向运动,第一凸轮盘(110)保持处于一不可转动的状态,直到突出部(106)推压在弧形槽的一个端部(120)上或另一端部(122)上时,第二凸轮盘(150)可随突出部(106)的运动而转动;以及各部件构造成:在收藏模式中,使所有的系带基本上位于卷轴(24)上,第二凸轮表面(166)定位在缺 Disk (110) and wobble gear (100) rotates, the second cam disk (150) selectively rotatable to selectively prevent the cam follower (132) enters the cutout (116), the second cam plate ( 150) comprising a receptacle (160) to loosely receive projection (106), a second cam disk (150) with the projection (106) rotates, the second cam disk (150) further comprises a socket with a substantially (160 ) first cam surface (164) opposite outwardly extended position, and a second cam surface positioned therebetween toward the outside (166); and the means configured to: when the system is received around the spool (24) with extends fully from a collection of a fully extended state to a state that allows the wobble gear (100) surrounding the ring gear (79) in the direction of movement about the back of the system, the first cam plate (110) remain in a non-rotatable state when the (122) until the projection portion (106) at one end of the pressing portion (120) of the arcuate slot or the other end portion, the second cam plate (150) movable with the projection (106) is rotated; and the components configured to: in the collection mode, with substantially all the lines of the spool (24), a second cam surface (166) is positioned missing 1(116)上,推压凸轮随动件(132)远离第一凸轮盘(110)的凸轮表面(114)。 1 (116), urging the cam follower member (132) away from the first cam disk (110) of the cam surface (114).
  2. 2.如权利要求1所述的座椅系带牵引器(20),其特征在于,第一凸轮盘(110)包括多个朝向内的短小突出部(156),以便可转动地支承第二凸轮盘(150)。 2. The seat belt retractor system (20) according to claim 1, wherein the first cam disk (110) comprises tabs (156) in a plurality of orientation, for rotatably supporting the second The cam plate (150).
  3. 3.如权利要求1所述的座椅系带牵引器(20),其特征在于,插座(160)相对于突出部(106)尺寸过大。 The seat belt retractor system (20) according to claim 1, characterized in that the socket (160) with respect to the projection (106) oversized.
  4. 4.如权利要求1所述的座椅系带牵引器(20),其特征在于,第二凸轮盘(150)包括一过渡表面,其沿径向向外地推凸轮随动件(132),在第二凸轮盘(150)运动后驻留在第二凸轮表面(166)上。 The seat belt retractor system according to claim 1 (20), characterized in that the second cam plate (150) comprises a transition surface, which pushes the cam follower member (132) radially outwardly, after the second cam disk (150) resides on a second movement of the cam surface (166).
  5. 5.如权利要求1所述的座椅系带牵引器(20),其特征在于,杠杆(130)围绕一位于凸轮随动件(132)的一侧上的枢轴可枢转,杠杆(130)还具有一定位在凸轮随动件(132)的另一侧上的一端部或表面(140),传感器棘爪(44)还包括一传感器棘爪销(45),其中,在收藏模式中,该端部或表面(140)推压传感器棘爪销(45)和传感器棘爪(44)以转动移离与棘轮(46)的接合,并致使传感器棘爪(44)对惯性质量(42)施加压力,阻止座椅系带牵引器(20)进入到ELR操作模式。 The seat belt retractor system (20) according to claim 1, characterized in that the lever (130) about a pivot axis of the cam follower member pivotable on one side (132) of the lever ( 130) further has a positioning follower member on the other (132) of the end portion or the side surface of the cam (140), the sensor pawl (44) further comprises a sensor pawl pin (45), wherein, in the collection mode in the end or surface (140) urging the sensor pawl pin (45) and a sensor pawl (44) to rotate to move away from engagement with the ratchet wheel (46), and causing the sensor pawl (44) on the inertial mass ( 42) applying pressure to prevent the seat belt retractor line (20) into the ELR mode of operation.
  6. 6.如权利要求5所述的座椅系带牵引器(20),其特征在于,座椅系带牵引器(20)构造成:系带从收藏状态中进一步延伸可致使摆动齿轮(100)沿系带卷绕的方向转动,相对于第一凸轮盘(110)沿相同的方向推压第二凸轮盘(150),暴露缺口(116)和移离凸轮随动件(132),由此,允许凸轮随动件(132)接合第一凸轮盘(110)的凸轮表面(114),这样的接合将杠杆(130)的端部(140)从传感器棘爪销(45)中分离,使惯性质量(42)和传感器棘爪(44)自由。 The seat belt retractor system (20) according to claim 5, wherein the seat belt retractor line (20) is configured to: lacing extends further from the stored state may cause the pendulum gear (100) along the direction of rotation of the tether is wound, with respect to the first cam disk (110) in the same direction urging the second cam plate (150), exposing the notch (116) and away from the cam follower member (132), whereby , allowing the cam follower (132) engages the first cam plate (110) of the cam surface (114), such engagement separating from the sensor pawl pin (45) of the lever (130) an end portion (140), so that an inertial mass (42) and a sensor pawl (44) free.
  7. 7.如权利要求1所述的座椅系带牵引器(20),其特征在于,第二凸轮盘(150)构造成通过突出部而运动,并就在所有系带从座椅系带牵引器(20)中抽出之前定位在缺口(116) 的前面,由此,防止凸轮随动件(132)进入缺口(116)内而起动ALR操作模式。 The seat belt retractor system (20) according to claim 1, characterized in that the second cam plate (150) is configured to be moved by the projecting portion, and pulling it from the seat belt at all tie lines positioning before extraction (20) in front of the notch (116), thereby preventing the cam follower member (132) into the notch (116) is started within the ALR mode of operation.
  8. 8.如权利要求7所述的座椅系带牵引器(20),其特征在于,就在所有系带从座椅系带牵引器(20)中抽出之前,第二凸轮盘(150)的第二凸轮表面(166)以与缺口(116)阻塞的关系定位。 The seat system according to claim 7 with a tractor (20), characterized in that, prior to a lead (20) from the seat belt based on all the lines drawn, the second cam disk (150) second cam surface (166) positioned in relation to the notch (116) is blocked.
  9. 9.如权利要求8所述的座椅系带牵引器(20),其特征在于,第二凸轮盘(150)的第一凸轮表面(164)的半径大于第二凸轮盘(150)的第二凸轮表面(166)的半径。 9. The seat belt retractor system (20) according to claim 8, characterized in that the radius of the second cam disk (150) of the first cam surface (164) is larger than the second cam disk (150) radius second cam surface (166).
  10. 10.如权利要求8所述的座椅系带牵引器(20),其特征在于,卷轴(24)沿系带卷绕方向的运动使第二凸轮盘(150)沿系带卷绕方向运动而露出缺口(116),使杠杆(130)进入缺口(116)内,推压传感器棘爪销(45)与棘轮(46)接合以起动ALR操作模式,座椅系带牵引器(20)构造成保持在ALR操作模式中,直到系带已回绕在卷轴(24)上而起动收藏的操作模式为止。 10. The seat belt retractor system (20) according to claim 8, characterized in that the movement of the reel (24) along the tether winding direction of the second cam disk (150) along the tether winding direction exposing the gap (116), the lever (130) into the notch (116), the sensor pawl pin pressing (45) with the ratchet wheel (46) engages to start the ALR mode of operation, the seat belt retractor line (20) is configured to remain in the ALR mode of operation until the tether has wrapped on a reel (24) is started until the collection mode of operation.
CN 200510109727 2004-09-14 2005-09-13 Seat belt retractor CN1754724B (en)

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US60974504P true 2004-09-14 2004-09-14
US60/609,745 2004-09-14

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CN1754724B true CN1754724B (en) 2010-10-27

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US (1) US7384014B2 (en)
EP (1) EP1634781B1 (en)
JP (1) JP4181158B2 (en)
KR (1) KR101200603B1 (en)
CN (1) CN1754724B (en)
AT (1) AT361866T (en)
DE (1) DE602005001096T2 (en)

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JP4181158B2 (en) 2008-11-12
DE602005001096D1 (en) 2007-06-21
KR101200603B1 (en) 2012-11-12
EP1634781B1 (en) 2007-05-09
DE602005001096T2 (en) 2008-01-10
EP1634781A1 (en) 2006-03-15
CN1754724A (en) 2006-04-05
US7384014B2 (en) 2008-06-10
US20060055226A1 (en) 2006-03-16
JP2006082801A (en) 2006-03-30
KR20060051257A (en) 2006-05-19
AT361866T (en) 2007-06-15

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